Experimental study on machined surface quality of turning superalloy Inconel625

As the development of new materials and high speed machining, cutting fluid becomes more and more important because of its functions of cooling, lubrication, corrosion protection and cleaning. The main purposes of cutting fluid are decreasing temperature, reducing friction, extending tool life and improving machining efficiency. In precision machining, high machined surface integrity is the most important. In this paper, a preliminary experimental study on effect of two different cutting fluids on milled surface quality of iron-base superalloy was taken. The surface morphology, roughness, micro hardness and residual stress of the machined surface were investigated. The results showed that the material properties and geometric characteristics of the machined surface were significantly affected by cutting fluid conditions. The effect of cutting fluid on machined surface quality and service performance will become an important research direction. This paper also suggests the main contents of the further research on effect of cutting fluids on machined surface.

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302 Evaluation of Machined Surface Quality of Long Fiber FRM by Electrical Discharge Machining

The Proceedings of Conference of Kyushu Branch ◽

10.1299/jsmekyushu.2000.53.49 ◽

2000 ◽

Vol 2000.53 (0) ◽

pp. 49-50

Author(s):

Rikio HIKIJI ◽

Yoshihiro KAWANO ◽

Koji ABURADA ◽

Masakazu HARADA ◽

Minoru ARAI

Keyword(s):

Surface Quality ◽

Electrical Discharge ◽

Electrical Discharge Machining ◽

Machined Surface ◽

Machined Surface Quality

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Influence of the CAM Parameters and Selection of End-Mill Cutter when Assessing the Resultant Surface Quality in 3D Milling

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.474.267 ◽

2014 ◽

Vol 474 ◽

pp. 267-272 ◽

Cited By ~ 11

Author(s):

Michal Fabian ◽

Peter Ižol ◽

Dagmar Draganovská ◽

Miroslav Tomáš

Keyword(s):

Ball Milling ◽

Surface Quality ◽

End Mill ◽

Machined Surface ◽

Machined Surface Quality ◽

Different Types ◽

Mill Cutter ◽

Milling Tools ◽

Selection Of

The paper deals with the effects of CAM data needed to produce desired quality of shaped surfaces in forming dies making. In general, the input CAM data have strong influence to the final surface quality. The shaped surfaces 3D milling has been modeled as end ball milling of the surfaces with defined inclination. The end ball milling is the most common way to finish shaped surfaces. Directions of the milling tools motion and applied cutting conditions have been used to simulate data when setting milling strategies. The resultant machined surface quality has been identified in terms of the surface roughness. The paper introduces recommendations applicable to the programming of the different types of milling strategy when producing form surfaces.

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The Effects of Cutting Parameters on Surface Texture of Hybrid Composite CFRP/AL2024

Materials Science Forum ◽

10.4028/www.scientific.net/msf.863.111 ◽

2016 ◽

Vol 863 ◽

pp. 111-115 ◽

Cited By ~ 3

Author(s):

Saiful Bahri Mohamed ◽

Wan Noor Fatihah Mohamad ◽

Martini Muhamad ◽

Jailani Ismail ◽

Been Seok Yew ◽

...

Keyword(s):

Surface Quality ◽

Hybrid Composite ◽

Cutting Parameters ◽

Depth Of Cut ◽

Machined Surface ◽

Machined Surface Quality ◽

Mechanical And Physical Properties ◽

End Mills ◽

Dry Conditions

The use of hybrid composite materials has increased due to their special mechanical and physical properties. However, machining of these materials is extremely difficult due to non-homogeneous, anisotropic and highly abrasive characteristics. The performance of machined surface quality of CFRP/Al2024 was described using two level factorial methodology. This research aims to study the interaction effects and significant factors of cutting parameters on the surface quality and optimise the cutting parameter for the surface quality of CFRP/Al2024 1μm to 2μm. The trimming process test was performed under dry conditions using burr tools 6mm diameter of end mills. The factors investigated were spindle speed (N), feed rate (fr) and depth of cut (dc), meanwhile profile roughness parameters (Ra) of CFRP and Al2024 were the response variables. Results show that the best estimated value of fr should be 500 mm/min to 530 mm/min, N is between and 2313.870 rpm to 2336.042 rpm. For both responses, N is the most significant effect followed by fr and dc.

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Spectral Properties of Milling and Machined Surface

Materials Science Forum ◽

10.4028/www.scientific.net/msf.836-837.570 ◽

2016 ◽

Vol 836-837 ◽

pp. 570-577 ◽

Cited By ~ 3

Author(s):

Gabor Stepan ◽

Mate Toth ◽

Daniel Bachrathy ◽

Suri Ganeriwala

Keyword(s):

Surface Quality ◽

Spectral Properties ◽

Cutting Tools ◽

Milling Process ◽

Machined Surface ◽

Industrial Case Study ◽

Machined Surface Quality ◽

Negative Effect

Machine tool vibrations cause uncomfortable noise, may damage the edges of cutting tools or certain parts of machine tools, but most importantly, they always have negative effect on the quality of the machined surface of workpieces. These vibrations are especially intricate in case of milling processes where complex tool geometries are used, like helical, serrated, non-uniform pitch angles, and so on. During the milling process, the arising vibrations include free, forced, self-excited, and even parametrically forced vibrations together with their different combinations. Regarding surface quality, the most harmful is the self-excited one called chatter, which is related to the regenerative effect of the cutting process. Its relation to machined surface quality is demonstrated in an industrial case study. The modelling and the corresponding cutting stability are presented in case of a helical tool applied for milling with large axial immersions. The extremely rich spectrum of the measured vibration signals are analyzed by means of model-based predictions, and the results are compared with the spectral properties of the corresponding machined surfaces. The conclusions open the way for new kinds of chatter identification.

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